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Front. Inform. Technol. Electron. Eng.  2010, Vol. 11 Issue (7): 555-561    DOI: 10.1631/jzus.C0910605
    
Generalized multilevel current source inverter topology with self-balancing current
Jian-yu Bao*,1, Wei-bing Bao2, Zhong-chao Zhang3
1 Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, China 2 Zhijiang College, Zhejiang University of Technology, Hangzhou 310024, China 3 Electrical Engineering College, Zhejiang University, Hangzhou 310027, China
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Abstract  A generalized single-phase multilevel current source inverter (MCSI) topology with self-balancing current is proposed, which uses the duality transformation from the generalized multilevel voltage source inverter (MVSI) topology. The existing single-phase 8- and 6-switch 5-level current source inverters (CSIs) can be derived from this generalized MCSI topology. In the proposed topology, each intermediate DC-link current level can be balanced automatically without adding any external circuits; thus, a true multilevel structure is provided. Moreover, owing to the dual relationship, many research results relating to the operation, modulation, and control strategies of MVSIs can be applied directly to the MCSIs. Some simulation results are presented to verify the proposed MCSI topology.

Key words： Multilevel current source inverter (MCSI)      Topology      Self current balancing      Duality     
Received: 09 October 2009      Published: 06 July 2010
CLC:  TM464  
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Cite this article:

Jian-yu Bao, Wei-bing Bao, Zhong-chao Zhang. Generalized multilevel current source inverter topology with self-balancing current. Front. Inform. Technol. Electron. Eng., 2010, 11(7): 555-561.

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http://www.zjujournals.com/xueshu/fitee/10.1631/jzus.C0910605     OR     http://www.zjujournals.com/xueshu/fitee/Y2010/V11/I7/555


Generalized multilevel current source inverter topology with self-balancing current

A generalized single-phase multilevel current source inverter (MCSI) topology with self-balancing current is proposed, which uses the duality transformation from the generalized multilevel voltage source inverter (MVSI) topology. The existing single-phase 8- and 6-switch 5-level current source inverters (CSIs) can be derived from this generalized MCSI topology. In the proposed topology, each intermediate DC-link current level can be balanced automatically without adding any external circuits; thus, a true multilevel structure is provided. Moreover, owing to the dual relationship, many research results relating to the operation, modulation, and control strategies of MVSIs can be applied directly to the MCSIs. Some simulation results are presented to verify the proposed MCSI topology.

关键词： Multilevel current source inverter (MCSI),  Topology,  Self current balancing,  Duality    
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